Question

Solve 3x+5y=11 and 5x-10y=44 and hence find the value of ‘m’ for which y=mx+1

Answer 1

Answer:

m= -2/5

Step-by-step explanation:

hope this will help you

Answer 2

$3x + 5y = 11 \: > > > > (1) \: \\ multiplying \: eqn.(1)\: by \: 2... \\ 6x + 10y = 22 > > > > (2) \\ 5x - 10y = 44 > > > > (3) \\ \\ adding \: eqn. \: (2) \: and \: eqn. \: (3)... \\ \: \: \: \: \: \: \: \: \: 6x + 10y = 22 \\( + ) \: \: 5x - 10y = 44 \\ > > > > x = 6 < < < < \\ \\ 5x - 10y = 44 \\ 5(6) - 10y = 44 \\ > > > > y = \frac{ - 7}{5} < < < < \\ \\ \\ following \: y = mx + 1 \\ \frac{ - 7}{5} = 6m + 1 \\ \frac{ - 12}{5} = 6m \\ > > > > > > > m = \frac{ - 2}{5} < < < < < < <$